KuCoin market buy order types

• OS: Windows
• Programming Language version: python
• CCXT version: 3.18.387
• Exchange: Kucoin
• Method: create market buy order

Kucoin’s API allows two types of market orders (link here) by specify either one of the two (not both):

1. specify ‘size’ = base currency amount, e.g. how much BTC one wants to buy in the BTC/USDT pair;
2. specify ‘funds’ = quote currency amount, e.g how much USDT one wants to spend to buy BTC.

The latter is very handy in creating market buy orders, since one does not need to analyse the order book to find out how much base currency he is able to buy, with the quote currency he’s got. But the option seems to be not enabled in the kucoin.py code (from line 542), i.e. one can only specify ‘size’:

    def create_order(self, symbol, type, side, amount, price=None, params={}):
        self.load_markets()
        marketId = self.market_id(symbol)
        # required param, cannot be used twice
        clientOid = self.uuid()
        request = {
            'clientOid': clientOid,
            'side': side,
            'size': self.amount_to_precision(symbol, amount),
            'symbol': marketId,
            'type': type,
        }

would be great to enable the second market order type as well, thanks very much!

[kroitor]

@lampardlb no worries, will resolve it anyway, thx, really appreciate your reporting!

[lampardlamps]

@kroitor Thanks for your reply - you should take some rest in the weekend mate! I’m a bit embarrassed to say that I do not know how to run github properly, and do not know js… I’ve modified the python codes in kucoin.py (by just removing ‘size’ out of ‘request’ initialisation to allow ‘funds’ in params), hope these can somehow help a little:

def create_order(self, symbol, type, side, amount=None, price=None, params={}):
     self.load_markets()
     marketId = self.market_id(symbol)
     # required param, cannot be used twice
     clientOid = self.uuid()
     request = {
         'clientOid': clientOid,
         'side': side,
         'symbol': marketId,
         'type': type,
     }

    if amount is not None:
        request['size']= self.amount_to_precision(symbol, amount),

     if type != 'market':
         request['price'] = self.price_to_precision(symbol, price)
     response = self.privatePostOrders(self.extend(request, params))
     responseData = response['data']
     return {
         'id': responseData['orderId'],
         'symbol': symbol,
         'type': type,
         'side': side,
         'status': 'open',
         'clientOid': clientOid,
         'info': responseData,
     }